More nullptr usage in headers

Diff generated by running clang-tidy's modernize-use-nullptr checker on
the CMake-based Qt version.

Skipping src/3rdparty, examples/, tests/

Change-Id: Ib182074e2e2fd52f63093f73b3e2e4c0cb7af188
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

5 files changed, 21 insertions, 21 deletions

diff --git a/src/network/socket/qabstractsocketengine_p.h b/src/network/socket/qabstractsocketengine_p.h
index 8eebb06a4d..112e7032d6 100644
--- a/src/network/socket/qabstractsocketengine_p.h
+++ b/src/network/socket/qabstractsocketengine_p.h
@@ -88,7 +88,7 @@ public:
     static QAbstractSocketEngine *createSocketEngine(QAbstractSocket::SocketType socketType, const QNetworkProxy &, QObject *parent);
     static QAbstractSocketEngine *createSocketEngine(qintptr socketDescriptor, QObject *parent);
 
-    QAbstractSocketEngine(QObject *parent = 0);
+    QAbstractSocketEngine(QObject *parent = nullptr);
 
     enum SocketOption {
         NonBlockingSocketOption,
@@ -155,7 +155,7 @@ public:
     virtual qint64 pendingDatagramSize() const = 0;
 #endif // QT_NO_UDPSOCKET
 
-    virtual qint64 readDatagram(char *data, qint64 maxlen, QIpPacketHeader *header = 0,
+    virtual qint64 readDatagram(char *data, qint64 maxlen, QIpPacketHeader *header = nullptr,
                                 PacketHeaderOptions = WantNone) = 0;
     virtual qint64 writeDatagram(const char *data, qint64 len, const QIpPacketHeader &header) = 0;
     virtual qint64 bytesToWrite() const = 0;
@@ -163,11 +163,11 @@ public:
     virtual int option(SocketOption option) const = 0;
     virtual bool setOption(SocketOption option, int value) = 0;
 
-    virtual bool waitForRead(int msecs = 30000, bool *timedOut = 0) = 0;
-    virtual bool waitForWrite(int msecs = 30000, bool *timedOut = 0) = 0;
+    virtual bool waitForRead(int msecs = 30000, bool *timedOut = nullptr) = 0;
+    virtual bool waitForWrite(int msecs = 30000, bool *timedOut = nullptr) = 0;
     virtual bool waitForReadOrWrite(bool *readyToRead, bool *readyToWrite,
                             bool checkRead, bool checkWrite,
-                            int msecs = 30000, bool *timedOut = 0) = 0;
+                            int msecs = 30000, bool *timedOut = nullptr) = 0;
 
     QAbstractSocket::SocketError error() const;
     QString errorString() const;
@@ -202,7 +202,7 @@ public Q_SLOTS:
 public:
     void setReceiver(QAbstractSocketEngineReceiver *receiver);
 protected:
-    QAbstractSocketEngine(QAbstractSocketEnginePrivate &dd, QObject* parent = 0);
+    QAbstractSocketEngine(QAbstractSocketEnginePrivate &dd, QObject* parent = nullptr);
 
     void setError(QAbstractSocket::SocketError error, const QString &errorString) const;
     void setState(QAbstractSocket::SocketState state);
diff --git a/src/network/socket/qhttpsocketengine_p.h b/src/network/socket/qhttpsocketengine_p.h
index bbcc09eee9..0c2c450c81 100644
--- a/src/network/socket/qhttpsocketengine_p.h
+++ b/src/network/socket/qhttpsocketengine_p.h
@@ -79,7 +79,7 @@ public:
         ReadResponseContent,
         ReadResponseHeader
     };
-    QHttpSocketEngine(QObject *parent = 0);
+    QHttpSocketEngine(QObject *parent = nullptr);
     ~QHttpSocketEngine();
 
     bool initialize(QAbstractSocket::SocketType type, QAbstractSocket::NetworkLayerProtocol protocol = QAbstractSocket::IPv4Protocol) override;
@@ -126,11 +126,11 @@ public:
     int option(SocketOption option) const override;
     bool setOption(SocketOption option, int value) override;
 
-    bool waitForRead(int msecs = 30000, bool *timedOut = 0) override;
-    bool waitForWrite(int msecs = 30000, bool *timedOut = 0) override;
+    bool waitForRead(int msecs = 30000, bool *timedOut = nullptr) override;
+    bool waitForWrite(int msecs = 30000, bool *timedOut = nullptr) override;
     bool waitForReadOrWrite(bool *readyToRead, bool *readyToWrite,
                             bool checkRead, bool checkWrite,
-                            int msecs = 30000, bool *timedOut = 0) override;
+                            int msecs = 30000, bool *timedOut = nullptr) override;
 
     bool isReadNotificationEnabled() const override;
     void setReadNotificationEnabled(bool enable) override;
diff --git a/src/network/socket/qlocalserver_p.h b/src/network/socket/qlocalserver_p.h
index 2c073908cb..92616e59ce 100644
--- a/src/network/socket/qlocalserver_p.h
+++ b/src/network/socket/qlocalserver_p.h
@@ -78,7 +78,7 @@ class QLocalServerPrivate : public QObjectPrivate
 public:
     QLocalServerPrivate() :
 #if !defined(QT_LOCALSOCKET_TCP) && !defined(Q_OS_WIN)
-            listenSocket(-1), socketNotifier(0),
+            listenSocket(-1), socketNotifier(nullptr),
 #endif
             maxPendingConnections(30), error(QAbstractSocket::UnknownSocketError),
             socketOptions(QLocalServer::NoOptions)
diff --git a/src/network/socket/qnativesocketengine_p.h b/src/network/socket/qnativesocketengine_p.h
index 2292566265..e5f0701d14 100644
--- a/src/network/socket/qnativesocketengine_p.h
+++ b/src/network/socket/qnativesocketengine_p.h
@@ -125,7 +125,7 @@ class Q_AUTOTEST_EXPORT QNativeSocketEngine : public QAbstractSocketEngine
 {
     Q_OBJECT
 public:
-    QNativeSocketEngine(QObject *parent = 0);
+    QNativeSocketEngine(QObject *parent = nullptr);
     ~QNativeSocketEngine();
 
     bool initialize(QAbstractSocket::SocketType type, QAbstractSocket::NetworkLayerProtocol protocol = QAbstractSocket::IPv4Protocol) override;
@@ -161,7 +161,7 @@ public:
     qint64 pendingDatagramSize() const override;
 #endif // QT_NO_UDPSOCKET
 
-    qint64 readDatagram(char *data, qint64 maxlen, QIpPacketHeader * = 0,
+    qint64 readDatagram(char *data, qint64 maxlen, QIpPacketHeader * = nullptr,
                         PacketHeaderOptions = WantNone) override;
     qint64 writeDatagram(const char *data, qint64 len, const QIpPacketHeader &) override;
     qint64 bytesToWrite() const override;
@@ -177,11 +177,11 @@ public:
     int option(SocketOption option) const override;
     bool setOption(SocketOption option, int value) override;
 
-    bool waitForRead(int msecs = 30000, bool *timedOut = 0) override;
-    bool waitForWrite(int msecs = 30000, bool *timedOut = 0) override;
+    bool waitForRead(int msecs = 30000, bool *timedOut = nullptr) override;
+    bool waitForWrite(int msecs = 30000, bool *timedOut = nullptr) override;
     bool waitForReadOrWrite(bool *readyToRead, bool *readyToWrite,
                             bool checkRead, bool checkWrite,
-                            int msecs = 30000, bool *timedOut = 0) override;
+                            int msecs = 30000, bool *timedOut = nullptr) override;
 
     bool isReadNotificationEnabled() const override;
     void setReadNotificationEnabled(bool enable) override;
diff --git a/src/network/socket/qsocks5socketengine_p.h b/src/network/socket/qsocks5socketengine_p.h
index ef9d771753..c256987e2d 100644
--- a/src/network/socket/qsocks5socketengine_p.h
+++ b/src/network/socket/qsocks5socketengine_p.h
@@ -65,7 +65,7 @@ class Q_AUTOTEST_EXPORT QSocks5SocketEngine : public QAbstractSocketEngine
 {
     Q_OBJECT
 public:
-    QSocks5SocketEngine(QObject *parent = 0);
+    QSocks5SocketEngine(QObject *parent = nullptr);
     ~QSocks5SocketEngine();
 
     bool initialize(QAbstractSocket::SocketType type, QAbstractSocket::NetworkLayerProtocol protocol = QAbstractSocket::IPv4Protocol) override;
@@ -104,7 +104,7 @@ public:
     qint64 pendingDatagramSize() const override;
 #endif // QT_NO_UDPSOCKET
 
-    qint64 readDatagram(char *data, qint64 maxlen, QIpPacketHeader * = 0,
+    qint64 readDatagram(char *data, qint64 maxlen, QIpPacketHeader * = nullptr,
                         PacketHeaderOptions = WantNone) override;
     qint64 writeDatagram(const char *data, qint64 len, const QIpPacketHeader &) override;
     qint64 bytesToWrite() const override;
@@ -112,11 +112,11 @@ public:
     int option(SocketOption option) const override;
     bool setOption(SocketOption option, int value) override;
 
-    bool waitForRead(int msecs = 30000, bool *timedOut = 0) override;
-    bool waitForWrite(int msecs = 30000, bool *timedOut = 0) override;
+    bool waitForRead(int msecs = 30000, bool *timedOut = nullptr) override;
+    bool waitForWrite(int msecs = 30000, bool *timedOut = nullptr) override;
     bool waitForReadOrWrite(bool *readyToRead, bool *readyToWrite,
                             bool checkRead, bool checkWrite,
-                            int msecs = 30000, bool *timedOut = 0) override;
+                            int msecs = 30000, bool *timedOut = nullptr) override;
 
     bool isReadNotificationEnabled() const override;
     void setReadNotificationEnabled(bool enable) override;